USB Upgrade issues

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Threaded Mode \| Linear Mode USB Upgrade issues
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complex1 Offline

3CX Adv. Cert. Engineer

Posts: 1,541

Joined: Jan 2014

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Post: #2

RE: USB Upgrade issues

(07-20-2021 11:14 PM)acwells Wrote: Hi, I am trying to recover a couple of T58 SIP phones and I have the BIN, RFS, and ROM files on USB. I boot the phone with the USB installed in the back while pressing the speaker button and I get Usb failed (-4)

Is it looking for a specific format of USB stick? I am currently formatted FAT32

Also tried renaming the files T58, T58A, T58V but nothing seems to help.

Any ideas?

Hi,

Please try this:
Rename the files to T58.bin, T58.rfs and T58.rom, insert the USB stick in the phone USB port, press and hold the Redial button, connect power and then press 2 when prompted for USB.

Hope this will help.

Kind regards,
Frank.

I am not an employee of Yealink.
Dutch is my native language, not English. Apologies for my imperfect grammar.
Please do not send unsolicited PM messages. I will not answer them.

07-21-2021 01:55 AM

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Messages In This Thread

USB Upgrade issues - acwells - 07-20-2021, 11:14 PM

RE: USB Upgrade issues - complex1 - 07-21-2021 01:55 AM

RE: USB Upgrade issues - acwells - 07-21-2021, 03:42 AM

RE: USB Upgrade issues - acwells - 07-21-2021, 10:02 PM

RE: USB Upgrade issues - complex1 - 07-21-2021, 11:14 PM

RE: USB Upgrade issues - Your Voice - 08-25-2021, 10:51 PM

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